Features: - Easy to use, no tools or assembly required - High quality, eco-friendly and durable material - Package of 17 economical and practical games - Wide range of applications, suitable for most industrial flat sewing machines - Easy to store, includes case for storage and transport - No need to make a hole in the wall to install it - Stylish magnetic discs with a tie strip in the middle - Flexible wear-resistant spring that adapts to curtains of different thicknesses